By Sarah Begley
Tina Fey has been on The Late Show With David Letterman 20 times, and now that he’s retiring, she says she’ll never wear a fancy dress on a late night show again.
“I dress up like this out of respect for you,” she said from the guest seat Thursday night. “This is it, because…what, am I gonna put a dress on for Jimmy? That’s creepy, he’s like my brother.”
Since this would be her last time wearing something nice on a talk show, she decided to give Letterman the dress as a gift. He helped her remove her frock onstage to reveal what she called “almost medical” contraptions of shapewear that read, “Bye Dave / #lastdressever.”
Photos: David Letterman’s Early Career
![Mork & Mindy Mork & Mindy](https://api.time.com/wp-content/uploads/2014/04/103385721.jpg?quality=75&w=2400)
![The Tonight Show Starring Johnny Carson The Tonight Show Starring Johnny Carson](https://api.time.com/wp-content/uploads/2014/04/141043650.jpg?quality=75&w=2400)
![Truma Capote and David Letterman on the David Letterman show. Truma Capote and David Letterman on the David Letterman show.](https://api.time.com/wp-content/uploads/2014/04/110529207.jpg?quality=75&w=2400)
![Late Night with David Letterman Late Night with David Letterman](https://api.time.com/wp-content/uploads/2014/04/152766107.jpg?quality=75&w=2400)
![Ed Sullivan Theater which is owned by CBS has the Late Show Ed Sullivan Theater which is owned by CBS has the Late Show](https://api.time.com/wp-content/uploads/2014/04/97252556.jpg?quality=75&w=2400)
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